Case for a tablet computer



FIG. 1 is a front perspective view of a case for a tablet computer showing my new design;

FIG. 2 is a top view;

FIG. 3 is a bottom view;

FIG. 4 is a front side view;

FIG. 5 is a rear side view; and,

FIG. 6 is a right side view, the left side view being a mirror image.

The broken lines represent environment and form no part of the claim. 

CLAIM The ornamental design for a case for a tablet computer, as shown and described. 